System and method for power detection in a power amplifier using an adjustable load
First Claim
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1. A power amplifier system comprising:
- a first power detector configured to detect a forward power output of a power amplifier, the first power detector further configured to provide a first power detector output;
an adjustable load coupled to the output of the power amplifier and configured to receive the first power detector output, the adjustable load further configured to provide an adjustable impedance at the output of the power amplifier in response to one of the output of the power amplifier and the first power detector output; and
a second power detector configured to receive a collector parameter signal from the power amplifier and detect a collector parameter therefrom, the second power detector further configured to provide a second power detector output, the second power detector including the adjustable load.
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Abstract
A power amplifier system includes a first power detector configured to detect a forward power output of a power amplifier, the first power detector configured to provide a first power detector output and an adjustable load coupled to the output of the power amplifier and configured to receive the first power detector output, the adjustable load configured to provide an adjustable impedance at the output of the power amplifier in response to one of the output of the power amplifier and the first power detector output.
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Citations
15 Claims
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1. A power amplifier system comprising:
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a first power detector configured to detect a forward power output of a power amplifier, the first power detector further configured to provide a first power detector output; an adjustable load coupled to the output of the power amplifier and configured to receive the first power detector output, the adjustable load further configured to provide an adjustable impedance at the output of the power amplifier in response to one of the output of the power amplifier and the first power detector output; and a second power detector configured to receive a collector parameter signal from the power amplifier and detect a collector parameter therefrom, the second power detector further configured to provide a second power detector output, the second power detector including the adjustable load. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A portable transceiver comprising:
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a transmitter operatively coupled to a power amplifier and to a receiver; a first power detector configured to detect a forward power output of the power amplifier, the first power detector further configured to provide a first power detector output; an adjustable load coupled to the output of the power amplifier and configured to receive the first power detector output, the adjustable load further configured to provide an adjustable impedance at the output of the power amplifier in response to one of the output of the power amplifier and the first power detector output; and a second power detector configured to receive a collector parameter signal from the power amplifier and detect a collector parameter therefrom, the second power detector further configured to provide a second power detector output, the second power detector including the adjustable load. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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Specification